Efficacy of COWP-Dewormer Combo

A study was conducted at the USDA ARS Dale Bumpers Small Farms Research Center in Booneville, Arkansas, to determine the efficacy of treatment with copper oxide wire particles (COWP) alone or in combination with levamisole (Prohibit®) or albendazole (Valbazen®) or a 3-way combination against anthelmintic-resistant worms. There were four treatment groups. If FAMACHA© scores were ≥ 3, lambs received 1) 1 g COWP (n=120); 2) COWP + levamisole (Prohibit®, 8 mg/kg) (n=27); 3) COWP + albendazole (Valbazen®, 7.5 mg/kg) (n=6); or 4) 3-way combination: COWP + levamisole + albendazole. Fecal egg counts (FEC) were determined on day 0 prior to treatment and 14 days post-treatment. FEC reductions were ca

Is Survival Linked to FEC?

At the Southwest Virginia Agricultural Research & Education Center, Katahdin rams with high (HiFEC) and low (LoFEC) fecal egg count EBVs (estimated breeding values) were randomly mated to ewes. Mid-March born lambs (n=199) were managed as one group until approximately 120 days of age. Deworming occurred as necessary (FAMACHA ≥ 3). Fecal egg count was significantly higher in hiFEC-sired lambs prior to weaning and again at 3 and 5 weeks post weaning. These differences corresponded to differences in lamb weaning and post-weaning FEC EBVs. Lambs sired by HiFEC rams required more anthelmintic treatments than those sired by LoFEC rams. The weaning and post-weaning FEC EBV of HiFEC-sired lambs was

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